Open sajjan02purdue opened 8 months ago
Hi, the short answer is no inherent support for doing that.
The strategy of converting an MPS to a quantum circuit can be straight-forward. You just first canonicalize the MPS, and then compile each unitary to a quantum circuit. However, compiling generic n-qubit unitary to a quantum circuit is very inefficient, which requires exponential many gates. A straight-forward approach is:
Alternatively, you could use the variational approach to approximate the gate. For example, the following paper used Yao and the code is available on Github: https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.1.023025
Hi, I am a regular user of ITensor new to Yao. I am wondering if the package has the functionality of producing an approximate quantum circuit of one and two qubit gates given an MPS (may be imported from ITensor etc from a DMRG calculation). There are couple of papers along that line that has been published in recent years like
https://arxiv.org/abs/2209.00595
https://journals.aps.org/pra/abstract/10.1103/PhysRevA.101.032310
I want to use Yao for a similar purpose, so I was wondering if there is inherent support for doing that here. Any help will be appreciated.